Trailer



ec, 4, i928.

v KING TRA ILER Filed Jan. 28, 1927 ATTO R N EY Patented Dec. 4, 1928. l

1,694,267 Feier..v

EMORY A. KING, OF CORYDON, IOWA.

TRAILER.

Application tiled January 28, 1927. Serial No. 164,289.

This invention relates-to certain novel improvements in trailers and hasfor its principal object the provision of an improved construction ofthis character Which will be highly ellieient in use and economical inmanufacture.

A. further object of the invention is to issue the turning of the wheelaxles of the trailer in opposite directions when the ve- 1o hicle .istraveling on a curve and to eliminate the usual binding of the wheelaxle turning mechanism when operable to turn the Wheels in said oppositedirection and also to avoid undue strain on the rfdge or connectionloetween the wheel axles consequent upon any of the carrying wheelsengaging an obstruction or entering a rut or ditch and to assure theready and easy turning of the wheel bearing axles by effective guidingmeans.

Other objects will appear hereinafter.

The invention consists in the novel combination and arrangement of partsto loe hereinafter described and'claimed.

'.lhe invention will be best understood by referente to the`accompanying drawings, showing the preferred form of construction and inwhich:

Fig. 1 is a plan view with the body of the trailer removed;

Fig. 2 is a fragmentary sectional detailed view taken substantially online 2-2 of Fig. 1; l

Fig. 3 is a fragmentary sectional detailed View taken substantially 0nline 3-3 of Fig. 1; and l Fig. f1 is a fragmentary-sectional detail viewtaken substantially on line 4-4 of Fig. 1.

ln the drawing 1() indicates the chassis of the trailer carrying theusual axles 11 and 12 through the medium of any approved spring andshackle connections (not shown). The axles 11 and 12 have pivotallyconnected thereto as at 13 the stud axles 14, 15', 16', and 17 whichcarry the wheels 15.

Secured to the side bars 1G of the chassis are ,transverse plates 17.-Carried by these plates 17 are bearing blocks 18 Which rotatably supporta rocker shaft 19.

The rear end portion of this rocker 4shaft 1S) has secured thereto adepending arm 20.

This arm 20 has connection to a push rod 21 through the medium of a balland socket vconnection 22. The opposite end portion'of the push rod 21is connected to an arm 23 through the medium of a ball and socketconnection 24. This arm 23 is formed as an integral part of the studaxle 17.

'lhe arm 23 is connected to one end portion of a connecting rod 25through the medium of a ball and socket connection 26, said connect-ionbeing' intern'iediate the end portions of the arm 23. The opposite endportion of the connecting rod is connected to an arm 27 formed as anintegral part of the stud axle 14. This connection is likewiseaccomplished through the medium of a ball and socket connection 28.

.From the description thus far Set forth it will be manifest that whenthe rocker arm 19 is rocked in one direction pivotal movement will beimparted to the stud axles 14: and 17 to pivot the Wheels 15 inunison inthe samedirection. l

The forward end portion of the rocker shaft 19 carries a depending arm29 which has its lower end portion connected to one end portion of apush rod 3() through the medium of a ball and socket connection 31. Theouter end portion of this push rod 30'is connected to an arm 32 throughthe medium of a ball and socket connection 33. This arm 32, formed as anintegral part of the stud axle 1G has connected intermediate its endportion and its juncture with the stud axle 1G a connecting rod 34.-This connection is accomplished through the medium of a ball and socketconnection 35 and in the present instance the opposite end portion ofthe push rod 3ft is connected, through the medium of a ball and socketconnection 36 to an end portion of an arm 37 formed as an integral partof the stud axle 15. Opposite the arm 37 is a forwardly extending armJ38 which is connected to one portion, through the medium of a. ball andsocket counectfon 39 to an arin 39. Opposite the arm 32 is a forwardlyextending arm 32 which i's connected to a bar 40 which cooperates withthe bar 39 for pivoting stud axles in a manner hereinafter set forth.This connection is accomplished through the medium of a ball and socketconnection 41.

I have found from experience that in order to assure accurate turning ofthe vWheels it is essential to'providc the arms 27, 23, 32, 37, 38, and32 of equal lengths from the Vertical centers of the pivots 13. Whenthis is done it Will be man'ifest that the pivotal movement of the arms38 Will be equal to the pivotal movement of the arms 37 and this is alsotrue of the arms 32 and 32.

and Vconnected together throug the medium of pins 42. These pins 42 arecarried by a rin 43 driven upon avsleve 44. This sleeve 44 1s mountedupon a draw bar 45 for slidable movement longitudinally thereto. Thedraw bar 45 has its inner eind portion 46 hingedl connected to the axle12, This is accom'p 'shed by loosely mounting upon the axle bearingsleeves 47 'which are formed as integral parts of arms 48. These arms 48have hinged connection` as lat 49 to a yoke 50. This yoke 50 carries asleeve 51 which is pivotally connected to the plates 52 of the yoke 50through the medium of pins 53. Thesleeve 51 is adapted for pivotalmovement relative to the yoke 50 and the draw bar 45 is ixedly retainedtherein.

The inner end portion 46 of the draw bar is guided in its swingingmovement through a guide structure 55 which comprises two super-imposedarcuated plates having ,end-

portions connected as at 56.

lVhen the Adraw bar is swung in one direction the sleeve 44 will movefbrwardly longitudinally upon the draw bar and impart movement to thebars 39 and 40 to pivot the stud axles 15 and 16. This pivotal movementof the stud axles 1,5" and 16 imparts roekable movement to the-shaft 19and this rockable movement of the shaft 19 will impart pivotal movementin an opposite direction to 3the stud axles 14 and 17.

By providing the slidable connection between the bars 39 and 40 and thedraw bar 45 it will be manifest to those skilled in the art that bindingeffect bet-Ween these parts is greatly eliminated and this slidableconnection permits the draw bar to return to its normal position withoutimparting strain to the turning mechanism herein described.

By providing a rockable shaft which imparts the pivotal movement to therear complementary stud axles 14 and 17 it will be manifest thatvibratory movement to this shaftl or wabbling of the wheels duringturning movement is practically eliminated.

While I have illustrated and described the preferred form ofconstruction for carrying my invention into effect,this is capable ofvariation and modification, without departing from the spirit of theinvention, I, therefore, do not wish to be limited to the precisedetails of construction set forth, but desire to avail myself of suchvariations and modifications as come within the scope of the appendedclaims.

Having thus described my invention what I claim as new and desire tosecureI by Letters Patent is: y

1. The combination with a vehicle chassis, axles carried bythe chassis,pairs of wheel bearing stud axles pivotally carried by said firstmentioned axles, and a draw bar, of a ment longitudinally of the drawbar, meansv connecting said member to one pair of said stud axles forimparting movement to the stud axles in a direction of movement of thedraw bar, and means connecting said one pair of stud axles to the otherpainof stud axles for imparting movement to said other pair of studaxles in an opposite direction to the movement of said one pair of studaxles. l

2. The combination Ywith a vehicle chassis, axles carried by theechassis, pairs of wheel bearing stud axles pivotally carried by saidfirst mentioned axles, and a draw bar, o1. a member carried by the drawbar for movement longitudinally of the dra-w bar, means connecting saidmember to one pair ot' said stud axles for imparting movement to thestud axles in a direction of movement of the draw bar, and ,meansconnecting said one pair of stud axles to the other pair of stud axlesfor imparting movement to said other pair of stud axles in an oppositedirection to the movement of said one pair of stud axles, 4said lastmentioned means including a rocker member carried by the chassis, pushrods, depending arms carried by opposite end portions of the rockermember, and ball and socket connections between opposite end portions ofthe push rods and depending arms and opposite corresponding stud axlesof each pair of said stud axles.

' 3.` The combination with a vehicle chassis, axles carried bythechassis, pairs of'wheel bearing stud axles pivotally carried by saidfirst mentioned axles, and a draw bar, of a member carried by the drawbar for movement longitudinally of the draw bar, means connecting saidmember to one pair of said stud axles 'for imparting movement to thestud axles in a direction of movement of the draw bar, and meansconnecting said one pair of studaxles to the other pair of stud axlesfor imparting vmovement to said .other pair of stud axles in an oppositedirection to' the movement of said one pair of stud axles and meansproviding connection between the draw bar and one of said firstmentioned axles permitting horizontal and vertical movement of the drawbar relative to said one of the axles.

4. The combination with a chassis of a 5. The combination vwith achassis of a vehicle, an axle carried by the chassis, a draw bar, andstud axles pivotally carried by said axle, of arms extending laterally`from the stud axles, a member mounted on to permit horizontal andvertical movement by said first mentioned ax of the draw bar, said meansincluding oppositelydisposed arms having pivotal connection to the axle,a yoke having hinged connection to the arms, means providing slidableand pivotal connection to the draw bar, and means operable on the innerend portion of the draw bar for guiding said draw bar in said verticaland horizontal movement.

6. The combination with a chassis of a vehicle, axles carried by thechassis, pairs of Wheel bearing stud axles pivotally carried es, and adraw bar of opposite laterally extending aligned arms carrled by eachstud axle of one of said pairs of stud axles, said arms being of equallength, arms carried by each stud axle of the other pair of stud axlesand of a length equal to the length of said first mentioned arms,.a`connecting rod connecting said second mentioned arms together, aconnectin rod connecting correspondin armsof sai -second mentionedarmstoget er, a rockable shaft carried by the chassis, depending arms`carried b opposite end portions of the shaft, push rods havin connectionto the lower end portions of t e depending arms, means connecting one ofthe push rods to one of said second mentioned arms, means connecting theother ush rod to one of the lateralarms of said rst mentioned arms, co0erating members havmg correspondlng en portions connected tocorresponding arms of said first mentioned arms, means slidably carriedby the draw bar for connecting opposite corresponding end portions ofsaid cooperating members to the draw bar, and means connecting the drawbar to one of said axles for permittin vertical and horizontal movementof the raw bar.

In testimony Vwhereof I aiix my signature.

EMORY A. KING.

